*{
    padding: 0;
    margin: 0;
    font-size: 14px;
    font-family: Arial, Helvetica, sans-serif;
    -webkit-user-select-: none;

}

ul{
    list-style: none;
}

.banner{
    width: 1000px;
    height: 400px;
    margin: 50px auto;
    position: relative;
    border: 1px solid green;
    .bannerInner{
        width: 100%;
        height: 100%;
        
        >div{
            width: 100%;
            height: 100%;
            position: absolute;
            background: url(../images/loading.png) no-repeat center;
            background-size: contain;
            left: 0;
            top: 0;
            display: block;
            img{
                z-index: 0;
                opacity: 0;
                
                width: 1000px;
                height: 400px;
                display: none;
            }
        }
    }

}

